Session bean and entity bean Seam components support all the usual EJB 3.0 lifecycle callback (@PostConstruct, @PreDestroy, etc). Seam extends all of these callbacks except @PreDestroy to JavaBean components. But Seam also defines its own component lifecycle callbacks.

The @Create method is called every time Seam instantiates a component. Unlike the @PostConstruct method, this method is called after the component is fully constructed by the EJB container, and has access to all the usual Seam functionality (bijection, etc). Components may define only one @Create method.

The @Destroy method is called when the context that the Seam component is bound to ends. Components may define only one @Destroy method. Stateful session bean components must define a method annotated @Destroy @Remove.

Finally, a related annotation is the @Startup annotation, which may be applied to any application or session scoped component. The @Startup annotation tells Seam to instantiate the component immediately, when the context begins, instead of waiting until it is first referenced by a client. It is possible to control the order of instantiation of startup components by specifying @Startup(depends={....}).